Surname Koopmann (Koopmann 
) , in the entire world, is quite a common cognomen. The cognomen Koopmann is habitual in Germany, where it is quite a rare surname, Namibia, and Paraguay. Not in comparison with a country's population, it is commonest in Germany, the United States, and Paraguay.
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| Koopmann | Paraguay, Namibia, Switzerland, United States, Germany |
| carl koopmann Duits; schilder; 1797-03-15; Hamburg-Altona; 1894-04-05; Heidelberg (Duitsland) (b. 1797) |
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| wilhelm heinrich koopmann German theologian, DE (b. 1814) |
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eduard koopmann DE (b. 1863) |
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| alice koopmann holocaust victim, b. 1858-03-07, DE (b. 1858) |
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| sara koopmann holocaust victim, b. 1860-07-22, DE (b. 1860) |
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| jenny koopmann holocaust victim, b. 1860-11-05, DE (b. 1860) |
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| leonhard koopmann holocaust victim, b. 1862-11-17, DE (b. 1862) |
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| anna koopmann holocaust victim, b. 1868-01-30, DE (b. 1868) |
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| julius koopmann holocaust victim, b. 1870-10-31, DE (b. 1870) |
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| sybilla koopmann holocaust victim, b. 1875-12-23, DE (b. 1875) |
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| wilhelm koopmann (b. 1870) |
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| hans koopmann (b. 1885) |
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| erwin koopmann German officer and Knight's Cross recipients, DE (b. 1900) |
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| johann koopmann German politician (1901-1960), DE (b. 1901) |
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| hermann koopmann German navy officer and WWII submarine commander (b. 1910) |
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